CVE intelligence and bounded remediation

CVE-2022-3711 — Sophos Xg Firewall Firmware security vulnerability

Medium CVSS 4.3

A post-auth read-only SQL injection vulnerability allows users to read non-sensitive configuration database contents in the User Portal of Sophos Firewall releases older than version 19.5 GA.

Severity
Medium
CVSS
4.3 (3.1)
Published
2022-12-01
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-89

Affected products

  • sophos / xg_firewall_firmware

Matched remediation archetype

SQL and data-query injection

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Check exposure

  • Trace request, message, file, and stored values into SQL, ORM query fragments, filters, sort expressions, and other data-query languages.
  • Inventory database roles, reachable schemas, multi-tenant boundaries, and whether stacked or administrative operations are enabled.
  • Check both direct queries and second-order use of previously stored values.

Remediate safely

  • Use parameterized queries or safe query builders for all values; map identifiers and operators through explicit allowlists.
  • Remove raw query concatenation and give the application account only the tables and operations it requires.
  • Update affected data-access components and add regression tests for query structure preservation with inert edge-case inputs.

Authoritative sources

Complete CVE record and remediation plan

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